23 Thread Spline & M3 thread.
Suitable for 1 Inch JR.

Specifications
23T
Thread: M3
Material: CNC Aluminum
Head hole inner diameter: approx. 2.5mm
Maximum Thickness: approx. 5mm
Minimum Thickness: approx. 2.5mm
Maximum Width: approx. 13mm
Body Width: approx. 8mm
Total Length: approx. 37mm
Distance from hole center to hole center：1 inch
Color: Yellow

Package Content:
1pc x Aluminum Servo Arm with Screw